Sony HCD-CP2 - Audio Board; Main Board

42
– AUDIO Board –
IC602 µPC1330HA
1
2
3
4
5
6
7 8 9
INVERTER
COMPARATER
SW R1 GND SW P1
CONT
GND
VCC
SW P2 GND
SW R2
– MAIN Board –
IC301 TDA7439
VREF
VOLUME
TREBLE
MIDDLE
BASS
SPEAKER
ATTENUATOR
MULTIPLEXER
GAIN AMP
IIC BUS
DECODER &
LATCH
SUPPLY
SDA
CREF
VS
AGND
ROUT
LOUT
SCL DIG GND TREBLE (R) TREBLE (L) MIN (L) MOUT (L) BOUT (L) BIN (L) BOUT (R) BIN (R) MOUT (R) MIN (R) INR
1 2 3 4 5 6
R-IN4 R-IN3
7 8
R-IN2 R-IN1
9 10
MULTIPLEXER
GAIN AMP
L-IN1 L-IN2
11 12
L-IN3 L-IN4
13 14
MUX OUT (L)
15
18
VOLUME
TREBLE
MIDDLE
BASS
SPEAKER
ATTENUATOR
INL MUX OUT (R)
161727282930 22 21 20 1926 25 24 23